There are a couple of ways you can get SU objects moving around in an Antics scene. Antics has a 'Create Path' tool, so the easiest way would be to draw out the path you want the object to follow, then command the object to 'snap to' or 'blend to' the path. The path can be edited as required, raised off the 'ground', moved around the scene and so on.
Alternatively, in the object's properties you could assign it a speed (in metres per second). Once the object has a speed you can use the 'Direct' tool to simply point and click where you want the object to go to.
You can then right-click on the object, select 'Edit Pivot' and control which way the object points as it follows the path.
So it's certainly possible to import an SU model into Antics and animate it as you wish.
There's a new 'Tips & Tricks' area on our forum dedicated to SU, it has some FAQs and is a great place to start.
http://antics3d.com/forum.php?action=topics&cat_id=24
We don't have a tutorial specifically for animating SU models as yet, but we do have a new SketchUp overview tutorial which gives a bit more detail than the one I posted earlier:
http://www.antics3d.com/index.php?action=tutorial_category&category_id=1